I hate to spoil the party but this girl wasn't at all an extra, she was one of the main attractions of the show.
That is not it, no. But thanks for the link and the info about that website hosting a lot of DB vids. The vid I am talking about I think had red vinyl booth seats, and it was a kind of darker, bar hall setting. Her blowjob was the last part of the video, if I recall. Very hot milfish look, with red hair
Here is the Video